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Re: 99 Viggen -CEL P 0453 widening quandry Posted by Bernie [Email] (#1501) [Profile/Gallery] (more from Bernie) on Wed, 7 Oct 2015 15:24:31 In Reply to: Re: 99 Viggen -CEL P 0453 widening quandry, scanav, Tue, 6 Oct 2015 20:23:48 Members do not see ads below this line. - Help Keep This Site Online - Signup |
Hello,
I would check fuse 37 and 38. Fuse 38 is for both heater circuits for the 02 sensor if the heater circuit is inop the closed loop code can set as well. Fuse 37 is for the limp home solenoid on the throttle body if is open you can get that throttle body code you have. Fuse 38 is powered by the main relay which also powers the fuel pump relay so it is possible something has happened to it. Especially if fuse 38 is still good. I would unplug the charged air pressure sensor after figuring out your new problems and see if the fuel tank pressure sensor operates correctly. Good Luck, Bernie
_______________________________________ George Riggin Specialty Automotive Current Saabs 1993 900 Turbo Conv. 1993 900 Turbo Conv. Auto 2003 9-3 Conv 2004 9-5 Arc Sedan 2005 9-3 SS 4 door 2005 9-3 SS Conv 2007 9-5 Aero Sedan 1986 900 Turbo Conv A few parts cars also
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